SliTaz Repositories

1 #!/bin/sh

2

3 [ ! -e "$1" ] && cat <<EOT && exit 2

4 Usage: [FAT=<FAT12|FAT16|FAT32|EXFAT>] $0 device [boot name entry] [boot.bin]

5 Example: $0 /dev/fd0 STARTUP.BIN

6 EOT

7

8 while read chk ofs fat bin name; do

9 [ $FAT -eq $fat ] || [ "$(dd if="$1" bs=1 count=8 skip=$chk)" = "$fat " ] || continue

10 echo "Install $fat bootsector on $1."

11 for arg in "skip=$(($ofs+8)) seek=$(($ofs+8))" "count=11" ; do

12 if [ "$3" ]; then

13 cat "$3"

14 else

15 sed '1,/^exit 1/d' $0 | tar xzOf - boot$bin.bin

16 fi | dd of="$1" bs=1 conv=notrunc $arg

17 done

18 [ "$2" ] && echo "Set bootfile '$2'" && echo -en "$name" | \

19 dd of="$1" bs=1 conv=notrunc seek=499 count=11

20 case "$fat" in

21 EXFAT) dd if="$1" bs=512 count=11 | od -v -An -t u1 -w1 - | awk '

22 BEGIN { chk=0; i=-1 }

23 {

24 i++

25 if (i == 106 || i == 107 || i == 112) next

26 chk = or(lshift(chk,31),rshift(chk,1)) + $1

27 }

28 END { a=chk%256; b=(chk/256)%256; c=(chk/256/256)%256; d=chk/256/256/256

29 for (i=0;i<128;i++) printf "echo -en \"\\x%02X\\x%02X\\x%02X\\x%02X\"\n",a,b,c,d

30 } ' | sh | dd bs=512 of="$1" seek=11

31 esac

32 exit 0

33 done 2> /dev/null <<EOT

34 54 54 FAT12 16 $(A="${2/./ }";echo "${A:0:8}${A##* } " | tr '[a-z]' '[A-Z]' | sed 's| |\\\\x20|g')

35 54 54 FAT16 16 $(A="${2/./ }";echo "${A:0:8}${A##* } " | tr '[a-z]' '[A-Z]' | sed 's| |\\\\x20|g')

36 82 82 FAT32 32 $(A="${2/./ }";echo "${A:0:8}${A##* } " | tr '[a-z]' '[A-Z]' | sed 's| |\\\\x20|g')

37 3 105 EXFAT ex $(echo "$2" | sed 's| |.|;s| ||g')\\\\0\\\\0\\\\0\\\\0\\\\0\\\\0\\\\0\\\\0\\\\0\\\\0

38 EOT

39 exit 1